arm: cpu: add arm64 specific code

This patch adds arm64 specific codes, which are:
	- exception support
	- cache support
	- rework Makefile to support arm64

Signed-off-by: Raphael Poggi <poggi.raph@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 22 insertions, 4 deletions

diff --git a/arch/arm/cpu/Makefile b/arch/arm/cpu/Makefile
index 854df60ebb..7eb06fbcb3 100644
--- a/arch/arm/cpu/Makefile
+++ b/arch/arm/cpu/Makefile
@@ -1,7 +1,24 @@
 obj-y += cpu.o
+
+ifeq ($(CONFIG_CPU_64v8), y)
+obj-$(CONFIG_ARM_EXCEPTIONS) += exceptions_64.o
+obj-$(CONFIG_MMU) += mmu_64.o
+lwl-y += lowlevel_64.o
+else
 obj-$(CONFIG_ARM_EXCEPTIONS) += exceptions.o
+obj-$(CONFIG_MMU) += mmu.o mmu-early.o
+pbl-$(CONFIG_MMU) += mmu-early.o
+lwl-y += lowlevel.o
+endif
+
 obj-$(CONFIG_ARM_EXCEPTIONS) += interrupts.o
-obj-y += start.o setupc.o entry.o
+obj-y += start.o entry.o
+
+ifeq ($(CONFIG_CPU_64v8), y)
+obj-y += setupc_64.o
+else
+obj-y += setupc.o
+endif
 
 #
 # Any variants can be called as start-armxyz.S
@@ -11,7 +28,6 @@ obj-$(CONFIG_CMD_ARM_MMUINFO) += mmuinfo.o
 obj-$(CONFIG_OFDEVICE) += dtb.o
 obj-$(CONFIG_MMU) += mmu.o cache.o mmu-early.o
 pbl-$(CONFIG_MMU) += mmu-early.o
-
 ifeq ($(CONFIG_MMU),)
 obj-y += no-mmu.o
 endif
@@ -27,6 +43,10 @@ obj-$(CONFIG_CPU_32v7) += cache-armv7.o
 AFLAGS_pbl-cache-armv7.o       :=-Wa,-march=armv7-a
 pbl-$(CONFIG_CPU_32v7) += cache-armv7.o
 obj-$(CONFIG_CACHE_L2X0) += cache-l2x0.o
+AFLAGS_cache-armv8.o       :=-Wa,-march=armv8-a
+obj-$(CONFIG_CPU_64v8) += cache-armv8.o
+AFLAGS_pbl-cache-armv8.o       :=-Wa,-march=armv8-a
+pbl-$(CONFIG_CPU_64v8) += cache-armv8.o
 
 pbl-y += setupc.o entry.o
 pbl-$(CONFIG_PBL_SINGLE_IMAGE) += start-pbl.o
@@ -34,5 +54,3 @@ pbl-$(CONFIG_PBL_MULTI_IMAGES) += uncompress.o
 
 obj-y += common.o cache.o
 pbl-y += common.o cache.o
-
-lwl-y += lowlevel.o